Radeon R9 270X and Radeon R9 M380 Mac Edition - video card comparison
Radeon R9 270X
Radeon R9 M380 Mac Edition
Architecture
GCN (2011−2017)
GCN 2.0 (2013−2017)
GPU code name
Curacao XT
Strato
Market segment
Desktop
Desktop
Release date
October 2013
May 2015
Bus support
PCIe 3.0
-
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
2 x 6-pin
-
Boost clock speed
1050 MHz
1021 MHz
Core clock speed
-
900 MHz
Floating-point performance
2,688 gflops
1,568 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
2,800 million
2,080 million
Pipelines / CUDA cores
1280
768
Power consumption (TDP)
180 Watt
-
Texture fill rate
84.00
49.01
Memory type
GDDR5
GDDR5
Maximum RAM amount
4 GB
2 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
-
6272 MHz
Memory bandwidth
179.2 GB/s
100.4 GB/s
Shared memory
-
-
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
No outputs
Eyefinity
+
-
HDMI
+
-
DisplayPort support
+
-
DirectX
DirectX® 12
12 (12_0)
Mantle
-
-
OpenCL
1.2
2.0
OpenGL
4.6
4.6
Shader Model
5.1
6.3
Vulkan
+
1.2.131
AppAcceleration
+
-
CrossFire
1
-
DDMA audio
+
-
Enduro
-
-
FreeSync
1
-
HD3D
+
-
LiquidVR
1
-
PowerTune
-
-
TressFX
1
-
TrueAudio
+
-
UVD
+
-
ZeroCore
-
-